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Caractérisation mécanique des orthèses : Application aux ceintures de soutien lombaire dans le cadre de la lombalgie

Abstract : Low back pain is a pain felt in the lumbar region of the spine. Lumbar orthotics might be used to relieve this pain. Efficacy of lumbar orthotics was proved, but mechanical effects remain unclear. Aim of this project if to analyze these mechanical effects for lumbar belts, a specific lumbar orthotic.In relation with clinicians and manufacturer, three different approaches were developed. First, experimental approach permits to determine mechanical properties of lumbar belts and to evaluate applied pressure related to these mechanical properties. Second, applied pressure by lumbar belts was measured using a clinical approach. This pressure has been related to the decrease in pain, to the wellbeing felt, to the modification of posture and to the lumbar belts strain. Third, numerical approach was used to demonstrate the influential parameters on pain relief.One of mechanical effects of lumbar belts, highlighted in this project, is the pressure applied on the trunk which causes change in abdominal and intradiscal pressure and posture. The applied pressure depends on the mechanical properties of the belts. Results demonstrate the importance of mastering the applied pressure and the specificity of the patient on the mechanical effects of belts. The different approaches are complementary; they are orthotics characterization tools that could be used for others orthotics and also helps in the development of new products.
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https://tel.archives-ouvertes.fr/tel-01198808
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Submitted on : Monday, September 14, 2015 - 2:27:07 PM
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  • HAL Id : tel-01198808, version 1

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Rébecca Bonnaire. Caractérisation mécanique des orthèses : Application aux ceintures de soutien lombaire dans le cadre de la lombalgie. Biomécanique [physics.med-ph]. Ecole Nationale Supérieure des Mines de Saint-Etienne, 2015. Français. ⟨NNT : 2015EMSE0786⟩. ⟨tel-01198808⟩

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